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Class Expr (2.10.0) Stay organized with collections
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Version 2.10.0 keyboard_arrow_down
public
final
class
Expr
extends
GeneratedMessageV3
implements
ExprOrBuilder
Represents a textual expression in the Common Expression Language (CEL)
syntax. CEL is a C-like expression language. The syntax and semantics of CEL
are documented at https://github.com/google/cel-spec
.
Example (Comparison):
title: "Summary size limit"
description: "Determines if a summary is less than 100 chars"
expression: "document.summary.size() < 100"
Example (Equality):
title: "Requestor is owner"
description: "Determines if requestor is the document owner"
expression: "document.owner == request.auth.claims.email"
Example (Logic):
title: "Public documents"
description: "Determine whether the document should be publicly visible"
expression: "document.type != 'private' && document.type != 'internal'"
Example (Data Manipulation):
title: "Notification string"
description: "Create a notification string with a timestamp."
expression: "'New message received at ' + string(document.create_time)"
The exact variables and functions that may be referenced within an expression
are determined by the service that evaluates it. See the service
documentation for additional information.
Protobuf type google.type.Expr
Static Fields
DESCRIPTION_FIELD_NUMBER
public
static
final
int
DESCRIPTION_FIELD_NUMBER
Field Value
EXPRESSION_FIELD_NUMBER
public
static
final
int
EXPRESSION_FIELD_NUMBER
Field Value
LOCATION_FIELD_NUMBER
public
static
final
int
LOCATION_FIELD_NUMBER
Field Value
TITLE_FIELD_NUMBER
public
static
final
int
TITLE_FIELD_NUMBER
Field Value
Static Methods
getDefaultInstance()
public
static
Expr
getDefaultInstance
()
Returns
getDescriptor()
public
static
final
Descriptors
.
Descriptor
getDescriptor
()
Returns
newBuilder()
public
static
Expr
.
Builder
newBuilder
()
Returns
newBuilder(Expr prototype)
public
static
Expr
.
Builder
newBuilder
(
Expr
prototype
)
Parameter
Returns
public
static
Expr
parseDelimitedFrom
(
InputStream
input
)
Parameter
Returns
Exceptions
public
static
Expr
parseDelimitedFrom
(
InputStream
input
,
ExtensionRegistryLite
extensionRegistry
)
Parameters
Returns
Exceptions
parseFrom(byte[] data)
public
static
Expr
parseFrom
(
byte
[]
data
)
Parameter
Returns
Exceptions
parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)
public
static
Expr
parseFrom
(
byte
[]
data
,
ExtensionRegistryLite
extensionRegistry
)
Parameters
Returns
Exceptions
parseFrom(ByteString data)
public
static
Expr
parseFrom
(
ByteString
data
)
Parameter
Returns
Exceptions
parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)
public
static
Expr
parseFrom
(
ByteString
data
,
ExtensionRegistryLite
extensionRegistry
)
Parameters
Returns
Exceptions
public
static
Expr
parseFrom
(
CodedInputStream
input
)
Parameter
Returns
Exceptions
public
static
Expr
parseFrom
(
CodedInputStream
input
,
ExtensionRegistryLite
extensionRegistry
)
Parameters
Returns
Exceptions
public
static
Expr
parseFrom
(
InputStream
input
)
Parameter
Returns
Exceptions
public
static
Expr
parseFrom
(
InputStream
input
,
ExtensionRegistryLite
extensionRegistry
)
Parameters
Returns
Exceptions
parseFrom(ByteBuffer data)
public
static
Expr
parseFrom
(
ByteBuffer
data
)
Parameter
Returns
Exceptions
parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)
public
static
Expr
parseFrom
(
ByteBuffer
data
,
ExtensionRegistryLite
extensionRegistry
)
Parameters
Returns
Exceptions
parser()
public
static
Parser<Expr>
parser
()
Returns
Methods
equals(Object obj)
public
boolean
equals
(
Object
obj
)
Parameter
Returns
Overrides
getDefaultInstanceForType()
public
Expr
getDefaultInstanceForType
()
Returns
getDescription()
public
String
getDescription
()
Optional. Description of the expression. This is a longer text which
describes the expression, e.g. when hovered over it in a UI.
string description = 3;
Returns
getDescriptionBytes()
public
ByteString
getDescriptionBytes
()
Optional. Description of the expression. This is a longer text which
describes the expression, e.g. when hovered over it in a UI.
string description = 3;
Returns Type
Description
ByteString
The bytes for description.
getExpression()
public
String
getExpression
()
Textual representation of an expression in Common Expression Language
syntax.
string expression = 1;
Returns
getExpressionBytes()
public
ByteString
getExpressionBytes
()
Textual representation of an expression in Common Expression Language
syntax.
string expression = 1;
Returns Type
Description
ByteString
The bytes for expression.
getLocation()
public
String
getLocation
()
Optional. String indicating the location of the expression for error
reporting, e.g. a file name and a position in the file.
string location = 4;
Returns
getLocationBytes()
public
ByteString
getLocationBytes
()
Optional. String indicating the location of the expression for error
reporting, e.g. a file name and a position in the file.
string location = 4;
Returns
getParserForType()
public
Parser<Expr>
getParserForType
()
Returns
Overrides
getSerializedSize()
public
int
getSerializedSize
()
Returns
Overrides
getTitle()
public
String
getTitle
()
Optional. Title for the expression, i.e. a short string describing
its purpose. This can be used e.g. in UIs which allow to enter the
expression.
string title = 2;
Returns
getTitleBytes()
public
ByteString
getTitleBytes
()
Optional. Title for the expression, i.e. a short string describing
its purpose. This can be used e.g. in UIs which allow to enter the
expression.
string title = 2;
Returns
getUnknownFields()
public
final
UnknownFieldSet
getUnknownFields
()
Returns
Overrides
hashCode()
Returns
Overrides
internalGetFieldAccessorTable()
protected
GeneratedMessageV3
.
FieldAccessorTable
internalGetFieldAccessorTable
()
Returns
Overrides
isInitialized()
public
final
boolean
isInitialized
()
Returns
Overrides
newBuilderForType()
public
Expr
.
Builder
newBuilderForType
()
Returns
newBuilderForType(GeneratedMessageV3.BuilderParent parent)
protected
Expr
.
Builder
newBuilderForType
(
GeneratedMessageV3
.
BuilderParent
parent
)
Parameter
Returns
Overrides
newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)
protected
Object
newInstance
(
GeneratedMessageV3
.
UnusedPrivateParameter
unused
)
Parameter
Returns
Overrides
toBuilder()
public
Expr
.
Builder
toBuilder
()
Returns
writeTo(CodedOutputStream output)
public
void
writeTo
(
CodedOutputStream
output
)
Parameter
Overrides
Exceptions
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Last updated 2025-09-04 UTC.
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